Road Stream Crossing Site PM_M140

Pere Marquette River Watershed, Pere Marquette tributary
Chauvez Rd
Pere Marquette Twp, Mason County
Information collected by:
Site Location
GPS Coordinates: 43.90628 , -86.40242
T18N R18W Sec 36
Owned by Private
Total Erosion: 0.1166 tons/year
Severity: Moderate
Year Inventoried: 2014
Inlet
Outlet
Upstream Conditions
Downstream Conditions
Road Approach - Left
Road Approach - Right
Crossing Information
Type of Crossing: culvert(s)
Number of Structures: 1
Structure Shape: Round
Inlet Type: Apron
Outlet Type: Outlet Apron
Structure Material: Metal
Structure Substrate: None
General Conditions: Good
Structure Interior: corrugated
Dimensions of Structure: Length 110 ft. , Width 5 ft. , Height 5 ft.
Structure Inlet
Water Depth: 0.1 ft.
Water Velocity*: 0.2 ft./sec.
Structure Outlet
Water Depth: 0.1 ft.
Water Velocity*: 0.3 ft./sec.
*Water Velocities were measured at the Surface (with Meter)
Stream Information
Stream Flow: Less than 1/2 Bankfull
Riffle Information
Water Depth: 0.1 ft.
Bankfull Width: 9 ft.
Wetted Width: 1.5 ft.
Water Velocity: 0.3 ft./sec. (Measured with Meter)
Dominant Substrate: Sand
Road Information
Paved County Road
Road Condition: Good
Road Width at Culvert: 24 ft.
Location of Low Point: At Stream
Runoff Path: Ditch
Embankments
Upstream
Fill Depth: 20 ft.
Slope: 1:1.5
Downstream
Fill Depth: 21 ft.
Slope: 1:1.5
Approaches
Left Approach
Length: 180 ft.
Slope: Less Than 1%
Vegetation: Heavy
LS Factor: 0.05
Erosion: 0.0071 tons/year
Right Approach
Length: 300 ft.
Slope: 1% to 5%
Vegetation: Heavy
LS Factor: 0.46
Erosion: 0.1095 tons/year
Erosion Information
Total Erosion at Crossing: 0.1166 tons/year
Extent of Erosion: Minor
Summary Information
Erosion is an area of concern for this site.